Sectional type bolt fastener convenient to disassemble and fastening method thereof
By designing segmented bolt fasteners, the combination of bumps, sleeves and micro airbag solvents is used to solve the problem of difficulty in disassembling bolts and threaded holes, and the rapid tightening and efficient disassembly of bolts are achieved, reducing the impact of rust.
Patent Information
- Application Number
- CN202411293670.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When disassembling the bolts and threaded holes, the bolts and threads cannot be easily disassembled due to the interaction between the bolts and threads, and the outer surface threads and the inner wall of the installation holes are rusted after long-term use, which affects the bolt removal process.
A segmented bolt fastener was designed, including a bolt body No. 1 and a bolt body No. 2. The diameter of the bolt body No. 2 is smaller than that of the bolt body No. 1. The outer surface is provided with a bump and a sleeve, and the inner bolt body and a micro airbag are used. The fastener dissolves the structure to achieve rapid tightening and disassembly of the bolt body.
The corrosion length of the thread segment is reduced, the convenience of disassembly and tightening performance of the bolts is improved, and the efficient disassembly and connection of the bolt body is ensured through the use of thread fasteners and micro airbag solvents.
Smart Images
Figure CN119163678A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bolts, and in particular to a segmented bolt fastener that is easy to disassemble and a fastening method thereof. Background Art
[0002] Bolts refer to a type of fastener consisting of a head and a screw. Fasteners are also called standard parts in the market. They are a general term for a type of mechanical parts used to fasten two or more parts into a whole. They are characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. Therefore, fasteners are a type of mechanical parts used for fastening connections and are extremely widely used.
[0003] When bolt fasteners are used in daily life, users install the fasteners on the objects to be connected, tighten the bolts, and connect them using the threads on the bolt surface and the threaded holes. Currently, threads are set on the entire outer surface of the bolts, and the part of the bolt inserted into the mounting hole is completely threaded. After long-term use, the threads on the outer surface of the bolts and the threads on the inner wall of the mounting hole will rust and die, affecting the removal of the bolts. In addition, an excessively long thread section will increase the rust section, thereby affecting the removal process of the bolts. Summary of the invention
[0004] The object of the present invention is to provide a segmented bolt fastener and a fastening method thereof which are easy to disassemble, so as to solve the problem in the above background technology that the bolt and the threaded hole cannot be easily disassembled due to the interaction between the bolt and the threaded hole.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a segmented bolt fastener and a fastening method thereof that is easy to disassemble, comprising a No. 1 bolt body, the No. 1 bolt body is a hollow cylindrical structure, the outer surface of the No. 1 bolt body is provided with a threaded structure, a nut is fixedly installed on one side surface of the No. 1 bolt body, the surface of the nut is provided with a cross-shaped slot, and a No. 2 bolt body is penetrated and provided on the other side surface of the No. 1 bolt body, the No. 2 bolt body is a cylindrical structure, and the No. 2 bolt body penetrates the side surface of the No. 1 bolt body, the No. 2 bolt body is threadedly connected with the side surface of the No. 1 bolt body, a thread fastener is provided at the threaded connection between the No. 1 bolt body and the No. 2 bolt body for connection, the diameter of the No. 2 bolt body is smaller than that of the No. 1 bolt body, the outer surface of the No. 2 bolt body is provided with a fastening structure, and the fastening structure is provided with a protrusion and a sleeve to realize the tight connection between the No. 2 bolt body and the mounting hole; Preferably, the fastening structure includes a protrusion, which is a truncated cone structure, and the bottom surface diameter of the truncated cone-shaped protrusion is equal to the diameter of the No. 1 bolt body. The protrusion is fixedly installed on the outer surface of the No. 2 bolt body, and the protrusion is concentrically arranged with the No. 2 bolt body. A plurality of protrusions are equidistantly arranged on the outer surface of the No. 2 bolt body, one of the protrusions is located at the end of the No. 2 bolt body, and a sleeve is sleeved and installed on the outer surface of the No. 2 bolt body, and the sleeve is a circular ring cylinder structure with two ends passing through, and the sleeve is located between two adjacent protrusions, and the surface of the sleeve is symmetrically provided with rectangular notches, and the diameter of the sleeve is equal to that of the No. 1 bolt body.
[0006] By adopting the above technical solution, the sleeve can be stretched out on the outer surface of the No. 2 bolt body by using the protrusion, so that the sleeve fits tightly with the inner wall of the installation hole, thereby improving the fastening performance.
[0007] Preferably, a disassembly structure is provided inside the No. 1 bolt body, and the disassembly structure is such that the inner bolt body drives the No. 2 bolt body to move inside the No. 1 bolt body to facilitate the disassembly of the bolt.
[0008] By adopting the above technical solution, the disassembly structure can be used to drive the second bolt body to move to realize the disassembly of the bolt body.
[0009] Preferably, the disassembly structure includes an inner bolt body, which is a hollow cylindrical structure, and the inner bolt body is threadedly connected to the inner wall of the No. 1 bolt body, and a cross-shaped groove is provided on one side surface of the inner bolt body, and circular through holes are provided on the surface of the No. 1 bolt body and the nut, which are aligned with the grooves on the surface of the inner bolt body, and a circular through hole is provided on the other side surface of the inner bolt body, and the circular through hole on the surface of the inner bolt body is slidably sleeved on the outer surface of the No. 2 bolt body, and a plurality of guide rods are annularly provided on the inner surface of the inner bolt body, and the other end of the guide rod is slidably installed in a slideway on the surface of the No. 2 bolt body, and the slideway is arranged in an arc shape on the outer surface of the No. 2 bolt body, and a circumferential path is provided at the end of the slideway.
[0010] By adopting the above technical solution, the movement of the inner bolt body inside the No. 1 bolt body can drive the No. 2 bolt body to move, thereby realizing the disassembly of the bolt body.
[0011] Preferably, a fastener dissolving structure is arranged inside the No. 1 bolt body, and the fastener dissolving structure is provided with a micro air bag to enclose an acetone solvent to decompose the thread fastener, so as to facilitate the separation of the No. 1 bolt body and the No. 2 bolt body.
[0012] By adopting the above technical solution, the thread fastener between the No. 1 bolt body and the No. 2 bolt body can be decomposed by using the micro airbag to wrap the acetone solvent.
[0013] Preferably, the fastener dissolving structure includes a block, which is an arc-shaped structure and is fixedly installed on the inner wall of the No. 1 bolt body. A micro airbag is fixedly provided on the inner wall of the block, and acetone solvent is wrapped inside the micro airbag. A guide groove is annularly provided on the inner wall of the block, one end of the guide groove is in contact with the micro airbag, and the other end of the guide groove is connected to a guide hole, and the guide hole is penetrated on the side surface of the No. 1 bolt body. A convex rod is provided on one side of the micro airbag, and the convex rod is fixedly connected to the side surface of the inner bolt body, and one end of the convex rod is a conical structure.
[0014] By adopting the above technical solution, the micro airbag is punctured by the conical protruding rod, so that the acetone solvent can flow out.
[0015] Preferably, in step one, insert the No. 2 bolt body together with the protrusion and sleeve on the surface into the mounting hole, so that the sleeve on the surface of the No. 2 bolt body contacts the inner wall of the mounting hole; in step two, use a tool to tighten the No. 1 bolt body into the mounting hole, so that the thread on the outer surface of the No. 1 bolt body fits with the thread on the inner wall of the mounting hole; in step three, the No. 2 bolt body is displaced in the mounting hole along with the No. 1 bolt body, and the protrusion on the surface of the No. 2 bolt body is displaced synchronously with the No. 2 bolt body into the mounting hole; in step four, the moving protrusion is inserted into the inner wall of the sleeve, causing the surface of the sleeve to deform, and the surface of the sleeve expands outward, so that the outer surface of the sleeve fits tightly with the inner wall of the mounting hole, and the bolt fastener completes the fastening process with the mounting hole.
[0016] By adopting the above technical solution, the bolt body composed of the No. 1 bolt body and the No. 2 bolt body arranged in sections can realize the rapid tightening and disassembly process of the bolt and the mounting hole.
[0017] Compared with the prior art, the invention has the following beneficial effects: the segmented bolt fastener and the fastening method thereof which are easy to disassemble: 1. The present invention provides a segmented bolt body formed by connecting a No. 1 bolt body and a No. 2 bolt body. The outer surface of the No. 1 bolt body is provided with threads, and the outer surface of the No. 2 bolt body is smooth. After the segmented bolt body is connected to an object, only the outer surface thread of the No. 1 bolt body is in contact with the inner wall thread of the mounting hole, thereby reducing the rust length of the thread segment, thereby facilitating the disassembly process of the bolt body. 2. In the present invention, the No. 1 bolt body and the No. 2 bolt body are connected by threads, and a thread fastener is used to increase the connection strength, thereby ensuring the connection strength between the No. 1 bolt body and the No. 2 bolt body. The No. 2 bolt body has a smaller diameter than the No. 1 bolt body. The bolt body can be quickly inserted into the mounting hole by using the No. 2 bolt body with a smaller diameter, thereby completing the rapid docking of the bolt and the mounting hole. 3. In the present invention, the thread on the outer surface of the No. 1 bolt body is threadedly connected with the mounting hole, and a convex block and a sleeve are arranged on the outer surface of the No. 2 bolt body. The sleeve is sleeved on the surface of the No. 2 bolt body, and a notch is arranged on the surface of the sleeve. When the No. 2 bolt body drives the convex block to move, the convex block is inserted into the sleeve, so that the sleeve opens and fits tightly with the inner wall of the mounting hole, so that the No. 2 bolt body section fits tightly with the mounting hole, thereby increasing the overall fastening performance of the bolt; 4. In the present invention, an inner bolt body is arranged inside the No. 1 bolt body, and the inner bolt body can be driven to move from the outside by the circular through holes on the surface of the No. 1 bolt body and the nut, and the movement of the inner bolt body drives the displacement of the No. 2 bolt body, and the protrusion on the surface of the No. 2 bolt body continuously displaces, and after penetrating the sleeve, the sleeve loses its force on the inner wall of the mounting hole, which facilitates the disassembly process of the bolt body; 5. During the movement and disassembly process of the inner bolt body in the present invention, the inner bolt body drives the convex rod to move and pierce the micro airbag, so that the solvent stored in the micro airbag flows out to decompose the thread fastener, thereby making the No. 2 bolt body and the No. 1 bolt body separable, facilitating the disassembly process of the segmented bolt body from both sides of the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the nut structure of the present invention; Figure 3 This is a schematic diagram of the front view structure of the No. 1 bolt body of the present invention; Figure 4 This is a schematic diagram of the rear view structure of the No. 1 bolt body of the present invention; Figure 5 This is a schematic diagram of the front cross-section structure of the No. 1 bolt body of the present invention; Figure 6 This is a schematic diagram of the front view structure of the inner bolt body of the present invention; Figure 7 It is a schematic diagram of the front cross-section structure of the inner bolt body of the present invention; Figure 8 This is a schematic diagram of the front view structure of the second bolt body of the present invention; Fig. 9 It is a schematic diagram of the front cross-section structure of the present invention.
[0019] In the figure: 1. No. 1 bolt body; 2. Nut; 3. No. 2 bolt body; 4. Thread fastener; 5. Bump; 6. Sleeve; 7. Inner bolt body; 8. Guide rod; 9. Slide; 10. Stopper; 11. Micro airbag; 12. Guide groove; 13. Guide hole; 14. Bump. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] See also Figure 1-9 The present invention provides a technical solution: a segmented bolt fastener that is easy to disassemble and a fastening method thereof, comprising a No. 1 bolt body 1, a nut 2, a No. 2 bolt body 3, a thread fastener 4, a protrusion 5, a sleeve 6, an inner bolt body 7, a guide rod 8, a slideway 9, a stopper 10, a micro airbag 11, a guide groove 12, a guide hole 13, and a protrusion 14.
[0022] The No. 1 bolt body 1 is a hollow cylindrical structure, and a threaded structure is arranged on the outer surface of the No. 1 bolt body 1. A nut 2 is fixedly installed on one side surface of the No. 1 bolt body 1, and a cross-shaped slot is arranged on the surface of the nut 2. A No. 2 bolt body 3 is penetrated on the other side surface of the No. 1 bolt body 1. The No. 2 bolt body 3 is a cylindrical structure, and the No. 2 bolt body 3 penetrates the side surface of the No. 1 bolt body 1. The No. 2 bolt body 3 is threadedly connected with the side surface of the No. 1 bolt body 1. A threaded fastener 4 is arranged at the threaded connection between the No. 1 bolt body 1 and the No. 2 bolt body 3 for connection. The diameter of the No. 2 bolt body 3 is smaller than that of the No. 1 bolt body 1. like Figure 1 As shown, when the device is used for the tightening process, a threaded mounting hole is drilled on the surface of the workpiece to be tightened, and a No. 2 bolt body 3 with a slightly smaller diameter is inserted into the mounting hole so that the bolt body and the mounting hole are quickly docked. A screwdriver is inserted into the slot on the surface of the nut 2 to drive the No. 1 bolt body 1 to rotate, so that the thread on the outer surface of the No. 1 bolt body 1 is connected with the thread of the mounting hole, and the No. 1 bolt body 1 drives the No. 2 bolt body 3 to move synchronously and insert into the interior of the mounting hole, thereby completing the connection between the bolt body and the mounting hole.
[0023] The outer surface of the No. 2 bolt body 3 is provided with a fastening structure, and the fastening structure is provided with a protrusion 5 and a sleeve 6 to realize the tight connection between the No. 2 bolt body 3 and the installation hole. The fastening structure includes a protrusion 5, and the protrusion 5 is a truncated cone-shaped structure. The bottom surface diameter of the truncated cone-shaped protrusion 5 is equal to the diameter of the No. 1 bolt body 1. The protrusion 5 is fixedly installed on the outer surface of the No. 2 bolt body 3, and the protrusion 5 is concentrically arranged with the No. 2 bolt body 3. There are multiple protrusions 5 equidistantly arranged on the outer surface of the No. 2 bolt body 3, one of which is located at the end of the No. 2 bolt body 3. The outer surface of the No. 2 bolt body 3 is sleeved with a sleeve 6, which is a circular tube structure with two ends through, and the sleeve 6 is located between two adjacent protrusions 5. The surface of the sleeve 6 is symmetrically provided with rectangular notches, and the diameter of the sleeve 6 is equal to that of the No. 1 bolt body 1. like Figure 1, Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, when the No. 2 bolt body 3 is inserted into the mounting hole for connection, the sleeve 6 on the outer surface of the No. 2 bolt body 3 contacts the inner wall of the mounting hole, and the No. 1 bolt body 1 continues to drive the No. 2 bolt body 3 to extend into the mounting hole. When the No. 2 bolt body 3 is displaced, the sleeve 6 remains stationary under the action of the friction force of the inner wall of the mounting hole, and the protrusion 5 on the outer surface of the No. 2 bolt body 3 moves with the No. 2 bolt body 3. After the truncated cone-shaped protrusion 5 is inserted into the gap between the sleeve 6 and the outer surface of the No. 2 bolt body 3, the sleeve 6 opens outward under the pressure of the protrusion 5, so that the protrusion 5 fits tightly against the inner wall of the mounting hole, thereby increasing the fastening performance of the device.
[0024] A disassembly structure is provided inside the No. 1 bolt body 1. The disassembly structure is provided with an inner bolt body 7 inside the No. 1 bolt body 1 to drive the No. 2 bolt body 3 to be displaced for easy disassembly of the bolt. The disassembly structure includes an inner bolt body 7. The inner bolt body 7 is a hollow cylindrical structure, and the inner bolt body 7 is threadedly connected to the inner wall of the No. 1 bolt body 1. A cross-shaped groove is provided on one side surface of the inner bolt body 7. Circular through holes are provided on the surfaces of the No. 1 bolt body 1 and the nut 2, and are aligned with the grooves on the surface of the inner bolt body 7. A circular through hole is provided on the other side surface of the inner bolt body 7, and the circular through hole on the surface of the inner bolt body 7 is slidably sleeved on the outer surface of the No. 2 bolt body 3. A plurality of guide rods 8 are provided in an annular manner on the inner surface of the inner bolt body 7. The other end of the guide rod 8 is slidably installed in a slideway 9 on the surface of the No. 2 bolt body 3. The slideway 9 is arranged in an arc shape on the outer surface of the No. 2 bolt body 3, and a circumferential path is provided at the end of the slideway 9. like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, when the bolt body needs to be disassembled, a screwdriver is inserted from the circular through holes on the surfaces of the No. 1 bolt body 1 and the nut 2, and engaged with the slots on the surface of the inner bolt body 7, and the screwdriver is used to drive the inner bolt body 7 to rotate inside the No. 1 bolt body 1, and the rotating inner bolt body 7 drives the guide rod 8 on the inner surface to slide in the slideway 9 on the surface of the No. 2 bolt body 3. When the guide rod 8 slides to the circumferential path of the slideway 9, the guide rod 8 can no longer slide on the slideway 9. At this time, the guide rod 8 pushes the No. 2 bolt body 3 to rotate on the slideway 9, and the rotating No. 2 bolt body 3 The bolt body 3 is threadedly rotated on the side surface of the No. 1 bolt body 1 and extends out of the side surface of the No. 1 bolt body 1. When the No. 2 bolt body 3 moves, the protrusion 5 on the surface of the No. 2 bolt body 3 penetrates the sleeve 6. The sleeve 6 loses the force of the protrusion 5, and the No. 1 bolt body 1 is rotated in the opposite direction, so that the No. 1 bolt body 1 and the No. 2 bolt body 3 can be removed from the mounting hole. If the mounting hole is a through structure on both sides, continue to rotate until the No. 2 bolt body 3 is separated from the No. 1 bolt body 1. After the guide rod 8 is cut off, the No. 1 bolt body 1 and the No. 2 bolt body 3 can be removed from both sides of the mounting hole.
[0025] A fastener dissolving structure is arranged inside the No. 1 bolt body 1, and a micro air bag 11 is arranged in the fastener dissolving structure to wrap an acetone solvent to decompose the thread fastener 4, so as to facilitate the separation of the No. 1 bolt body 1 and the No. 2 bolt body 3. The fastener dissolving structure comprises a stopper 10, which is an arc-shaped structure and is fixedly mounted on the inner wall of the No. 1 bolt body 1. A micro air bag 11 is fixedly arranged on the inner wall of the stopper 10, and an acetone solvent is wrapped inside the micro air bag 11. A guide groove 12 is arranged in an annular manner on the inner wall of the stopper 10, and one end of the guide groove 12 contacts with the micro air bag 11, and the other end of the guide groove 12 is connected with a guide hole 13, and the guide hole 13 is arranged through the side surface of the No. 1 bolt body 1, and a convex rod 14 is arranged on one side of the micro air bag 11, and the convex rod 14 is fixedly connected with the side surface of the inner bolt body 7, and one end of the convex rod 14 is a conical structure; like Figure 5 , Figure 7 and Fig. 9 As shown, when the inner bolt body 7 moves, the protruding rod 14 on the surface of the inner bolt body 7 moves synchronously. When the protruding rod 14 contacts the micro airbag 11, the micro airbag 11 can be punctured by the protruding rod 14, and the acetone solvent inside the micro airbag 11 flows out, flows along the inner wall of the arc-shaped stopper 10, and under the guidance of the guide groove 12, flows out from the guide hole 13 on the side surface of the No. 1 bolt body 1. The acetone solvent decomposes the thread fastener 4 on the thread surface on both sides of the side surface of the No. 1 bolt body 1, so that the No. 2 bolt body 3 and the No. 1 bolt body 1 can be threadedly separated.
[0026] The method for using the segmented bolt fastener is as follows: comprising the following steps: step 1, inserting the No. 2 bolt body 3 together with the protrusion 5 and the sleeve 6 on the surface into the mounting hole, so that the sleeve 6 on the surface of the No. 2 bolt body 3 contacts the inner wall of the mounting hole; step 2, tightening the No. 1 bolt body 1 into the mounting hole using a tool, so that the thread on the outer surface of the No. 1 bolt body 1 fits with the thread on the inner wall of the mounting hole; step 3, the No. 2 bolt body 3 moves in the mounting hole along with the No. 1 bolt body 1, and the protrusion 5 on the surface of the No. 2 bolt body 3 moves synchronously with the No. 2 bolt body 3 to penetrate into the mounting hole; step 4, the moving protrusion 5 is inserted into the inner wall of the sleeve 6, driving the surface of the sleeve 6 to deform, and the surface of the sleeve 6 expands outward, so that the outer surface of the sleeve 6 fits tightly with the inner wall of the mounting hole, and the bolt fastener completes the fastening process with the mounting hole; The second bolt body 3 is inserted into the mounting hole, and the No. 1 bolt body 1 can be quickly connected to the mounting hole by using the No. 2 bolt body 3 with a smaller diameter, and the No. 1 bolt body 1 is connected to the inner wall thread of the mounting hole by using the No. 1 bolt body 1. During the connection process, the No. 2 bolt body 3 is displaced in the mounting hole, so that the protrusion 5 is inserted into the inner wall of the sleeve 6, and the sleeve 6 expands outward and opens to fit tightly with the inner wall of the mounting hole. When the bolt body needs to be disassembled, the screwdriver is inserted into the groove on the surface of the inner bolt body 7, and the inner bolt body 7 is rotated. During the rotation of the inner bolt body 7, the protruding rod 14 is driven to pierce the micro airbag 11, and the acetone solvent inside the micro airbag 11 flows out to decompose the thread fastener 4. The No. 2 bolt body 3 is displaced on the surface of the No. 1 bolt body 1 until it is separated, which is convenient for the disassembly process of the bolt body from the mounting hole.
[0027] Working principle: the No. 1 bolt body 1 and the No. 2 bolt body 3 are connected by threads to form a detachable two-stage structure, and the thread fastener 4 is used to increase the connection strength. When the bolt body is used for fastening connection, the No. 2 bolt body 3 is inserted into the mounting hole, and the thread on the outer surface of the No. 1 bolt body 1 is used for connection. At this time, the sleeve 6 on the outer surface of the No. 2 bolt body 3 is opened under the action of the protrusion 5, so that the sleeve 6 is tightly fitted to the inner wall of the mounting hole, thereby increasing the fastening performance of the bolt. When the bolt is disassembled, a screwdriver is used to drive the inner bolt body 7 to move inside the No. 1 bolt body 1, and the inner bolt body 7 drives the protruding rod 14 to pierce the micro airbag 11, so that the acetone solvent inside the micro airbag 11 flows out and the thread fastener 4 is decomposed. The inner bolt body 7 continues to move to drive the No. 2 bolt body 3 to move, and the protrusion 5 on the surface of the No. 2 bolt body 3 penetrates the sleeve 6. The No. 1 bolt body 1 is rotated in the opposite direction, and the No. 1 bolt body 1 and the No. 2 bolt body 3 can be removed from the mounting hole.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A segmented bolt fastener that is easy to disassemble, comprising a No. 1 bolt body (1), the No. 1 bolt body (1) is a hollow cylindrical structure, the outer surface of the No. 1 bolt body (1) is provided with a threaded structure, a nut (2) is fixedly mounted on one side surface of the No. 1 bolt body (1), the surface of the nut (2) is provided with a cross-shaped groove, a No. 2 bolt body (3) is penetrated and provided on the other side surface of the No. 1 bolt body (1), the No. 2 bolt body (3) is a cylindrical structure, and the No. 2 bolt body (3) penetrates the side surface of the No. 1 bolt body (1), the No. 2 bolt body (3) is threadedly connected with the side surface of the No. 1 bolt body (1), a thread fastener (4) is provided at the threaded connection between the No. 1 bolt body (1) and the No. 2 bolt body (3), the diameter of the No. 2 bolt body (3) is smaller than that of the No. 1 bolt body (1), and the characteristics are: The outer surface of the No. 2 bolt body (3) is provided with a fastening structure, and the fastening structure is provided with a protrusion (5) and a sleeve (6) to achieve a tight connection between the No. 2 bolt body (3) and the installation hole.
2. The easily disassembled segmented bolt fastener according to claim 1, characterized in that: The fastening structure comprises a protrusion (5), the protrusion (5) being a truncated cone structure, the bottom surface diameter of the truncated cone-shaped protrusion (5) being equal to the diameter of the first bolt body (1), the protrusion (5) being fixedly mounted on the outer surface of the second bolt body (3), and the protrusion (5) and the second bolt body (3) being arranged concentrically, a plurality of protrusions (5) being arranged equidistantly on the outer surface of the second bolt body (3), one of the protrusions (5) being located at the end of the second bolt body (3), a sleeve (6) being sleeved and mounted on the outer surface of the second bolt body (3), the sleeve (6) being a circular ring structure with two ends passing through, and the sleeve (6) being located between two adjacent protrusions (5), the surface of the sleeve (6) being symmetrically provided with rectangular notches, and the diameter of the sleeve (6) being equal to the diameter of the first bolt body (1).
3. The easily disassembled segmented bolt fastener according to claim 2, characterized in that: A disassembly structure is provided inside the first bolt body (1), wherein the disassembly structure is provided with an inner bolt body (7) which drives the second bolt body (3) to move inside the first bolt body (1) to facilitate disassembly of the bolt.
4. The easily disassembled segmented bolt fastener according to claim 3, characterized in that: The disassembly structure comprises an inner bolt body (7), the inner bolt body (7) is a hollow cylindrical structure, and the inner bolt body (7) is threadedly connected to the inner wall of the No. 1 bolt body (1), a cross-shaped groove is arranged on one side surface of the inner bolt body (7), the No. 1 bolt body (1) and the nut (2) are provided with circular through holes aligned with the grooves on the surface of the inner bolt body (7), the other side surface of the inner bolt body (7) is provided with a circular through hole, and the circular through hole on the surface of the inner bolt body (7) is slidably sleeved on the outer surface of the No. 2 bolt body (3), a plurality of guide rods (8) are annularly arranged on the inner surface of the inner bolt body (7), and the other end of the guide rod (8) is slidably installed in a slideway (9) on the surface of the No. 2 bolt body (3), the slideway (9) is arranged in an arc shape on the outer surface of the No. 2 bolt body (3), and a circumferential path is arranged at the end of the slideway (9).
5. The easily disassembled segmented bolt fastener according to claim 4, characterized in that: A fastener dissolving structure is arranged inside the No. 1 bolt body (1), and the fastener dissolving structure is provided with a micro air bag (11) encapsulating an acetone solvent to decompose the thread fastener (4), thereby facilitating the separation of the No. 1 bolt body (1) and the No. 2 bolt body (3).
6. The easily disassembled segmented bolt fastener according to claim 5, characterized in that: The fastener dissolving structure comprises a stopper (10), the stopper (10) being an arc-shaped structure and fixedly mounted on the inner wall of a No. 1 bolt body (1), the inner wall of the stopper (10) being fixedly provided with a micro airbag (11), the interior of the micro airbag (11) enclosing an acetone solvent, the inner wall of the stopper (10) being provided with a guide groove (12) in an annular manner, one end of the guide groove (12) being in contact with the micro airbag (11), the other end of the guide groove (12) being connected to a guide hole (13), the guide hole (13) being arranged through the side surface of the No. 1 bolt body (1), a convex rod (14) being provided on one side of the micro airbag (11), the convex rod (14) being fixedly connected to the side surface of the inner bolt body (7), and one end of the convex rod (14) being a conical structure.
7. A method for fastening a segmented bolt fastener that is easy to disassemble as claimed in any one of claims 1 to 6, characterized in that: Includes steps: Step 1: insert the second bolt body (3) together with the protrusion (5) and the sleeve (6) on the surface into the mounting hole, so that the sleeve (6) on the surface of the second bolt body (3) contacts the inner wall of the mounting hole; Step 2: Use a tool to tighten the No. 1 bolt body (1) into the mounting hole so that the threads on the outer surface of the No. 1 bolt body (1) fit with the threads on the inner wall of the mounting hole; Step 3: The second bolt body (3) moves in the mounting hole along with the first bolt body (1), and the protrusion (5) on the surface of the second bolt body (3) moves synchronously with the second bolt body (3) and penetrates into the mounting hole; Step 4: The moving protrusion (5) is inserted into the inner wall of the sleeve (6), causing the surface of the sleeve (6) to deform, and the surface of the sleeve (6) expands outward, so that the outer surface of the sleeve (6) is tightly fitted with the inner wall of the mounting hole, and the bolt fastener completes the fastening process with the mounting hole.